Steam iron



FIG. 1 is a front perspective view of a steam iron showing my new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a side elevational view thereof;

FIG. 4 is an elevational view of the opposite side thereof;

FIG. 5 is a front elevational view thereof;

FIG. 6 is a rear elevational view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The broken line showing of a cord is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a steam iron, as shown and described. 